Heating apparatus



Dec. 29, 1931. MEYERS 1,838,430

HEATING APPARATUS Filed Oct. 5, 1929 2 Sheets-Sheet 1 I N VEN TOR.

fez MC M, mzwee A TTORNEYS Dec. 29, 1931. R. 1.. MEYERS HEATING AFPARATUS Filed Oct. 5, 1929 2 Sheets-Sheet 2 INVENTOR.

v 777M ATTORNEYS Patented Dec. 29, 1931 noY L. MEYERS, or JANESVILLE, WISCONSIN 'HEATING Arramrus Application fileaoctoter 3, i929. Serial no. 397,038.

This invention relates to improvements in heating apparatuses. It is one of the objects of the present nvention to provide a unitary heating apparatus under asingle casing including a furnace or boiler and an auxiliary heating device arranged'sothat the exhaust smokeand gases 7 of combustion from the furnace or boiler will travel in a circuitous route through the auxiliary heating device permitting the take off of warm fluid pipes from both the furnace or boiler and the auxiliary heating dev1ce, for heating purposes. a Y

A further object of the invention is to provide a unitary apparatus of the class describ'ed'arranged so as to occupy a minimum amount of space. 3 j g A further object ofthe inventionis to provide a unitary apparatus ofthe class described inwhich the various pipes and fines are readily accessible for cleaning.

' A further object ofthe invention is to provide a furnace which will burn materially less fuel than other furnaces of a like capacity but will'deliver' more heat and will supply the correct humidity to all rooms heated thereby. y f a A further object of the invention 1s to pro: vide a heating apparatus which is of very simple construction, is relatively inexpensive to manufacture and install, is-strong and durable-and efficient, and is well 'adapted for the purposesdescribed. J j

With the above and other objects in VlGW the invention consists of the improved heating apparatus and its parts and combinatlo'ns as set forth in the claims, and all equivalents thereof 1' In the accompanying drawings 1n whlch the same reference characters indicate the same parts in all of the viewsz Fig. 1 isa side View of the lmproved heating' apparatus as installed; Fig.2 i'sa plan' view thereof W1th part broken away'andparts In section p Fig. 3 is an enlarged detail sectional view taken on line 3&3 of Fig. 2, partly broken away;and f I; Fig. 4 is an-enlarged detail sectional. view taken on line i -40f Fig. 2.

V mounted :upon

- disposed above the a the interiors thereof.

Referring now more particularly to the drawings it will appear that the numeral 6indicates a sheet metal casing which 'encloses the improved heating apparatus. With- I in the casing at one end portion thereof is'a hot air furnace 7 of -ordinary construction adapted to burn coal, oil, gas, or other fuel. The furnace 7 is so disposed that the flanged portions-8,9 and 10 surrounding the usual clean-out opening, the feed door,,and the ash pit door respectively, terminate in openings intheend of the casingG and are closed by exteriorly accessible doors 11, 12 and13 respectively; i

Within the other end 6 and disposed transversely of the casing is an auxiliary heating apparatus including a pair of spaced apart drums 14 and 15 supporting legs 16. The I drum 14 is divided, intermediateits top and bottom portions, by a horizontal wall 17. The drums-14 and 15 are connected by means of two series of horizontalsmoke tubes 18 and 19 respectively. The smoke tubes 18 are wall 17 while'the smoke tubes 19 are disposed below the wall 17and the end portions of said tubes are open and enter openings in the inner sides of'the drums 14 and 15 so as to communicate with It will thereforeqbe observed that the auxiliary heating apparatus including the pair of spaced apart vertically disposed drums connected by the two sets of horizontal smoke tubes, is arranged transversely to the furnace 7 rearwardly of .35 the same within the outer casing 6. The outer sideof the drum 15 is provided with flanged openings 20 and 21 respectively and the flanged portions of said openings exrfi tend against the inner sidewall of the casing 0 6'and saidca'sin'g 6 isformedwith openings 'to'register with the flanged openings 20 and 21, and'the openings in the casing-are con- 7 trolled b'y exteriorly accessible hinged doors 22 and 23. The openings described andthe doors aifordaccess to the tubes 18 and 19 for cleaning purposes. 1 I I r A smoke pipe 24 extends tangentially from an inner side opening 24: of the furnace 7 and said smoke pipe is coupled with alsmoke portion of the casing 65 I 27 and 28 extend through openings 29 and therefor in the end of the outer casing 6 and enter the upper and lower side portions of the drum 14.

By the arrangement thus far described smoke and hot gases of combustion are dis charged from the furnace 7 through the angular smoke pipe 24 and the connection 2 1' and enter the upper portion of the drum 14. Because of the shelf 17 dividing the drum 1 1, the smoke must pass through the upper smoke pipes 18 to the upper portion of the drum 15- and then it may drop in the drum 1-5 and return to the lower portion of the drum 14, through the smoke tubes 19. From the lower portion of the drum 14 the smoke .and gases, which have cooled materially during their passage through the smoke tubes and drums, are discharged normally through the extension 28 and pipe 26 to the chimney 25. Vithin the upper extension 27 of. the smoke exhaust pipe 26 is a damper 31, controlled by the temperature or pressure of the flue gases to permit short-circuit of said gases directly to the chimney in certain cases, as,,for instance,.when ablast occurs.

The furnace 7' functions in its normal manner to heat a fluid which heated fluid is conveyed to heating registers in a building (not shown) by means of ordinary flues or pipes 32 which extend to the registers. Furthermore, a cold air pipe 33 enters an opening 34' in the lower portion of the outer casing 6 and said cold air pipe introduces cold air into the casing. The exhaust smoke and hot gases of combustion discharged by the furnace through the pipe 24 circulate in the auxiliary heating apparatus as previously. described and gradually drop in said apparatus during their circulation. The coldair introduced into the outer casing gradually rises Within the casing and circulates against and around the smoke tubes 19' and 18 and the drums and extracts a great amount of heat from the exhaust smoke and gases of combustion and the air so introduced is quickly warmed to a temperature sufficient for heating purposes and is conveyed from the upper portion of the casing by meansof warm air flues or pipes 35 which extend to, heating registers 36 positioned where desired within the building,

F romthe" foregoing description it will ,be seen that the device utilizes for heating purposes lieat that i'sordinarily wasted and the disposition of the auxiliary heating apparatus; with. respect to-the furnace permits the greatest efficiency in the extraction of heat from the exhaust gases and smoke. Furthermore the device is of a unitary character and occupies a minimum amount of space and by reason of encasing both the furnace and the auxiliary heating device the apparatus has a neat and attractive appearance, and the cold air introduced into the outer casing is warmed, not only by circulation around the tubes and drums of the auxiliary heating apparatus, but alsoby circulation around the furnace proper. Furthermore, the disposition of the-furnace and auxiliary heating device is such that the doors in the outer casing for the furnace proper and for access to the-smoke tubes, are conveniently located.

Vhat is claimed as the invention is:

1'. A heating apparatus, comprising a casing, a fuel burning heater therewithin, an auxiliary heater also within the casing and including a pair of spaced apart vertical drums, both of which are equidistant from "he heater, and a plurality of horizontal tubesconnecting various opposed portions of said drums, a smoke pipe extending from the heater to an upper portion of one of the drums, said .rum being interiorly divided intermediate its upper and lower ends by a horizontal wall, a smoke exhaust pipe extending from a lower portion of said divided drum outwardly of the casing, clean out openings in the other drum affording access to all of said horizontal tubes, a warm fluid pipe extending from the heater through the casing, a warm fluid pipe extending out wardly from an upper portion of thecasing,

and a cold fluid pipe entering-a lower portion of the casing and opening directly thereinto.

2'. A heating apparatus, comprising a rectangular casing, a fuel burning heater therewithin and facing one end of the casing, doors in said end of the casing affording access to said heater, an auxiliary heater within the other end portion of said casing and extended transversely thereof, said auxiliary heater including a pair of opposed, vertically positioned drums and a plurality of horizontal tubes connecting various portions of said drums, one of said drums being interiorly divided intermediate its upper and lower ends by a horizontal wall, and a side of the other drum being connected directly with a side of the casing with registering openings in said drum and casing to afford direct access to all of the tubes doors controlling said openings, a smoke pipe extending'from the heater to an upper portion of the divided drum, a smoke exhaust pipe extending from a lower portion of the same drum outwardly of the casing, a warm fluid pipe extending from the heater through the casing, a warm fluid pipe extending outwardly from an upper portion of the casing, and a cold fluid pipe entering a lower portion of the casing and opening directly thereinto.

3. A heating apparatus, comprising a rectangular casing, a fuel burning heater there- Within and facing one end of the casing, doors in said end of the casing affording access to said heater, an auxiliary heater within the other end portion of said casing and extended transversely thereof, said auxiliary heater including a pair of opposed, vertically positioned drums and a plurality of horizontal tubes connecting various portions of said drums, one of said drums being interiorly divided intermediate its upper and lower ends by a horizontal wall, and a side of the other drum being connected directly with the casing with registering openings in said drum and casing to aflord direct access to all of the tubes, doors controlling said openings, a smoke pipe extending from a side portion of the heater directly to an upper side portion of the divided drum, a smoke exhaust pipe extending from a lower portion of the same drum outwardly of the casing, a short circuiting smoke pipe extending 7 from an upper portion of said drum outwardly of the casing and connecting with said smoke exhaust pipe, a Warm fluid pipe extending from the heater through the casing, a Warm fluid pipe extending outwardly from an upper portion of the casing, and a cold fluid pipe entering a lower portion of o the casing and opening directly thereinto.

4. In a heating apparatus, an outer casing, a fuel burning heater therewithin, an auxiliary heater also Within the casing and includ- V ing a primary vertical drum and a secondary vertical drum in spaced relation, horizontal tubes directly connecting both drums and providing a fluid route from the primary drum to the secondary drum and back to 40 the primary drum, a smoke pipe extending from the first-mentioned heater to an upper portion of the primary drum, a smoke exhaust pipe extending from a lower portion of the primary drum outwardly of the casing,

said secondary drum having controlled open ings therein for direct access 'to all of the tubes for cleaning purposes, a warm fluid pipe extending outwardly from an upper portion of the casing, and a cold fluid pipe entering a lower portion of the casing and opening directly thereinto.

In testimony whereof, I aifix my signature.

ROY L. MEYERS. 

